Commands tagged qmail (1)

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Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Get length of current playlist in xmms2

check open ports without netstat or lsof

pretend to be busy in office to enjoy a cup of coffee
Not as taxing on the CPU.

Pretty-print user/group info for a given user

generate iso

Install pip with Proxy
Installs pip packages defining a proxy

open two files on top of each other in vim (one window, two panes)

Show Directories in the PATH Which does NOT Exist
I often need to know of my directory in the PATH, which one DOES NOT exist. This command answers that question * This command uses only bash's built-in commands * The parentheses spawn a new sub shell to prevent the modification of the IFS (input field separator) variable in the current shell

Make a dedicated folder for each zip file
${f%*.zip} strips off the extension from zip filenames

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